Composition is OK-ish, not bad, not anything unique, just your average everyday house song, you should spend more time on melodies, dont stop until it sounds OK, but until it is great, memorable
0:40 there is quite huge jump in volume, from tiny silent intro to super loud drop... It's good to put the rendered MP3 back to FL (or whatever you use) and just look if there aren't any peaks like this in the waveform, then edit it back in project
1:16 don't really like this part, some of the notes sound off-key to me + that bell thing could be quiter
2:49/3:34 the bass has some high pitch noise in it, I would cut it somehow
If its only your 5th song, technical quality is really decent, but there is still a lot things to work on :)
cheers